Electronic Excitation in Air and Carbon Dioxide Gas

This lecture presents review of elementary processes in nonequilibrium low-temperature plasma of chemical compositions (air and carbon dioxide mixtures) frequently occurring in different aerospace applications. The general attention is given to electronic kinetics of atoms and diatomic molecules in the frame of radiative collisional model (Chapters 4 and 5). The thermodynamic models of the plasma are considered in the Chapter 2. The place of the radiative-collisional model among other models is defined in the chapter. Formulation of the generalized radiative-collisional model is given in Chapter 3. The sixth chapter of the lecture presents the problem of data processing automation. This problem is considered on the example of prediction of oscillator strengths of atomic species. Spectral emissivity of strong shock waves is air and carbon dioxide mixtures is analysed in Chapter 7. The hybrid thermodynamic model, including the local thermodynamic equilibrium and the radiative-collision models, is formulated and used in the chapter. Numerical simulations and comparison with available experimental data are presented there. The Chapter 7 contains detailed description of kinetic data which were used by the author at consideration of physical and chemical kinetics in strong shock waves. The last part of the Chapter 7 contains short review of some other kinetic models. The text of the lecture contains an appendix. Some kinetic data which can be used at creation of various kinetic models are presented in the appendix. All of these data were used by the author at solution of concrete problems of radiation gas dynamics, therefore from the author's point of view, these can be recommended for practical work in aerospace aerophysics. See also ADA562449. RTO-EN-AVT-162, Non-Equilibrium Gas Dynamics - From Physical Models to Hypersonic Flights (Dynamique des gaz non- equilibres - Des modeles physiques jusqu'au vol hypersonique)., The original document contains color images.